South Carolina mammals

House Mouse in South Carolina

Mus musculus

Introduced to South Carolina

South Carolina's Mus musculus records are of an introduced species; it does not occur here as a wild native population.

IUCN Red List status

  1. LC
  2. NT
  3. VU
  4. EN
  5. CR
  6. EW
  7. EX

LC – Least Concern

Widespread and abundant; not at risk.

House Mouse in South Carolina, by the numbers

Occasional in South Carolina 46th most recorded of 108 mammals logged in South Carolina

80 occurrence records
18 with iNaturalist photos
Nov 19, 2025 Last seen in South Carolina

Records from 2000–2026.

When to look for the House Mouse in South Carolina

Most sightings fall in January.

80 South Carolina occurrence records (iNaturalist and GBIF) by month of year, 2000–2026. Shows when the species is recorded, not a guarantee of presence.

Monthly South Carolina records (table)
MonthRecords
January56
February1
March1
April0
May3
June0
July1
August1
September3
October4
November4
December6

Monthly house mouse occurrence records (iNaturalist and GBIF) in South Carolina, 2000–2026.

Seasonality

Year-round in South Carolina, with recorded sightings peaking in January.

Occurrence map

Where House Mouse has been recorded in South Carolina

80 records mapped · zoom and drag to explore

79 South Carolina records mapped

Where it's recorded in South Carolina

CountyRecords
Charleston County 52
Pickens County 3
Horry County 3
Anderson County 3
Sumter County 3
Marion County 2
Oconee County 2
Greenville County 2
Lexington County 1
Lancaster County 1
Berkeley County 1
Richland County 1
5 other counties 6

The complete county distribution, spread across 17 South Carolina counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

House mice are introduced commensal rodents in South Carolina, and NatureServe’s SNA rank, not applicable, reflects that introduced species don’t receive a state conservation status. The record leans toward GBIF (75 of 80 records), meaning trapping and specimen collection, not people spotting mice, accounts for most of what’s documented here.

January alone accounts for 56 of the 80 records, a striking 70 percent of the entire year’s total, a dramatic spike that plausibly reflects one large concentrated trapping effort that winter rather than any real seasonal explosion in mouse activity, since house mice breed indoors year-round regardless of outside conditions.

Occurrence data from iNaturalist and GBIF.

House Mouse in other states

More mammals in South Carolina in the atlas

Data & sources

The data and visualizations on this page draw on these open sources:

  • GBIFCC-BY 4.0occurrence records behind the range map, elevation, and record counts
  • iNaturalistCC0 / CC-BY / CC-BY-SAobservations, photos, and audio recordings
  • NatureServe ExplorerCC-BYthe state conservation rank
  • IUCN Red Listattributed factthe global conservation status
  • USGS NASpublic domainnative / introduced status
  • Natural Earthpublic domainthe relief basemap
  • USFSpublic domainnational-forest boundaries